| /* |
| * Copyright (C) 2008, Google Inc. |
| * Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org> |
| * and other copyright owners as documented in the project's IP log. |
| * |
| * This program and the accompanying materials are made available |
| * under the terms of the Eclipse Distribution License v1.0 which |
| * accompanies this distribution, is reproduced below, and is |
| * available at http://www.eclipse.org/org/documents/edl-v10.php |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * - Neither the name of the Eclipse Foundation, Inc. nor the |
| * names of its contributors may be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package org.eclipse.jgit.treewalk.filter; |
| |
| import org.eclipse.jgit.internal.JGitText; |
| import org.eclipse.jgit.lib.Constants; |
| import org.eclipse.jgit.treewalk.TreeWalk; |
| |
| /** |
| * Includes tree entries only if they match the configured path. |
| * <p> |
| * Applications should use |
| * {@link org.eclipse.jgit.treewalk.filter.PathFilterGroup} to connect these |
| * into a tree filter graph, as the group supports breaking out of traversal |
| * once it is known the path can never match. |
| */ |
| public class PathFilter extends TreeFilter { |
| /** |
| * Create a new tree filter for a user supplied path. |
| * <p> |
| * Path strings are relative to the root of the repository. If the user's |
| * input should be assumed relative to a subdirectory of the repository the |
| * caller must prepend the subdirectory's path prior to creating the filter. |
| * <p> |
| * Path strings use '/' to delimit directories on all platforms. |
| * |
| * @param path |
| * the path to filter on. Must not be the empty string. All |
| * trailing '/' characters will be trimmed before string's length |
| * is checked or is used as part of the constructed filter. |
| * @return a new filter for the requested path. |
| * @throws java.lang.IllegalArgumentException |
| * the path supplied was the empty string. |
| */ |
| public static PathFilter create(String path) { |
| while (path.endsWith("/")) //$NON-NLS-1$ |
| path = path.substring(0, path.length() - 1); |
| if (path.length() == 0) |
| throw new IllegalArgumentException(JGitText.get().emptyPathNotPermitted); |
| return new PathFilter(path); |
| } |
| |
| final String pathStr; |
| |
| final byte[] pathRaw; |
| |
| private PathFilter(String s) { |
| pathStr = s; |
| pathRaw = Constants.encode(pathStr); |
| } |
| |
| /** |
| * Get the path this filter matches. |
| * |
| * @return the path this filter matches. |
| */ |
| public String getPath() { |
| return pathStr; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public boolean include(TreeWalk walker) { |
| return matchFilter(walker) <= 0; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public int matchFilter(TreeWalk walker) { |
| return walker.isPathMatch(pathRaw, pathRaw.length); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public boolean shouldBeRecursive() { |
| for (byte b : pathRaw) |
| if (b == '/') |
| return true; |
| return false; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public PathFilter clone() { |
| return this; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| @SuppressWarnings("nls") |
| public String toString() { |
| return "PATH(\"" + pathStr + "\")"; |
| } |
| |
| /** |
| * Whether the path length of this filter matches the length of the current |
| * path of the supplied TreeWalk. |
| * |
| * @param walker |
| * The walk to check against. |
| * @return {@code true} if the path length of this filter matches the length |
| * of the current path of the supplied TreeWalk. |
| */ |
| public boolean isDone(TreeWalk walker) { |
| return pathRaw.length == walker.getPathLength(); |
| } |
| } |